![]() ![]() In total, there are 65,535 port numbers assigned to different protocols and divided into three ranges: the well-known ports, the registered ports, and the dynamic or private ports. The initial term was socket number and had a 40-bit quantity. The concept of port numbers was first introduced by the early developers of the ARPANET back in the seventies. All network-connected devices come equipped with standardized ports that have an assigned number. What are port numbers?Ī port number identifies each transport protocol and address combination with a 16-bit unsigned integer. Ports ensure the network connections arrive in the right place, and the traffic remains steady. In simple terms, a port in networking is a software-defined number associated with a network protocol that receives or transmits communications for a specific service. But what exactly does a port do? And why it’s numbered like that? This article provides the answers. When you install an SSL certificate, one of the steps is to select port 443 – the default port for the HTTPS connection. How to Change My Site from HTTP to HTTPS. ![]()
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